"You can register through the following TDB Online banking menus
TDB Online Banking (Mobile App): Go to the Home or ACCOUNTS menu, select Unified Account Directory, choose the account you wish to register in the registration section, select your mobile phone number or email address, and save.
TDB Online Banking (Web Version): Log in and navigate to the UNIFIED ACCOUNT DIRECTORY section under the ACCOUNTS menu, select your account in the registration section, select your mobile phone number or email address, and save.